52480013 has 2 divisors, whose sum is σ = 52480014. Its totient is φ = 52480012.

The previous prime is 52479991. The next prime is 52480019. The reversal of 52480013 is 31008425.

52480013 = 5122² + 5123².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26245129 + 26234884 = 5123^2 + 5122^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52480013 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52480019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26240006 + 26240007.

It is an arithmetic number, because the mean of its divisors is an integer number (26240007).

Almost surely, 2^52480013 is an apocalyptic number.

52480013 is the 5123-rd centered square number.

It is an amenable number.

52480013 is a deficient number, since it is larger than the sum of its proper divisors (1).

52480013 is an equidigital number, since it uses as much as digits as its factorization.

52480013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 52480013 is about 7244.3090077660. The cubic root of 52480013 is about 374.3960958400.

Adding to 52480013 its reverse (31008425), we get a palindrome (83488438).

The spelling of 52480013 in words is "fifty-two million, four hundred eighty thousand, thirteen".